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GrainGenes Reference Report: CRS-40-1148

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Reference	CRS-40-1148
Title	Mapping Yr28 and Other Genes for Resistance to Stripe Rust in Wheat
Journal	Crop Science
Year	2000
Volume	40
Pages	1148-1155
Author	Singh RP Nelson JC Sorrells ME
Abstract	Summary: Stripe (yellow) rust, caused by Puccinia striiformis West., is an important constraint to wheat production in cool environments. With the purpose of identifying genes for resistance to the disease, a RFLP mapping population of recombinant inbred lines developed from a synthetic [Triticum turgidum L. x Aegilops tauschii (Coss.) Schmal.] x T. aestivum L. cv. 'Opata 85' cross was visually evaluated for seedling infection type in three greenhouse inoculation tests and for adult-plant disease severity in four field tests at Celaya and Toluca, Mexico. A previously unidentified gene from Ae. tauschii, designated as Yr28, was located on chromosome arm 4DS. Although Yr28 strongly influenced seedling resistance, it showed a strong effect in adult plants at only the warmer of the two field sites. A second gene showed high environmental sensitivity in seedling tests, with resistance associa0ted with Opata marker alleles near the adult-plant resistance (APR) gene Yr18 on chromosome arm 7DS. Gene Yr18, known to be present in Opata, strongly reduced disease response in field trials and was tightly linked with leaf-rust resistance gene Lr34. Three other regions from Opata on chromosome arms 3BS, 3DS, and 5DS were also associated with APR
External Databases	https://doi.org/10.2135/cropsci2000.4041148x
Gene	Yr28 (Triticum)
Isolate	14E14 MEX96-11
Locus	Yr28
QTL	QYr-3B_Opata85 Yr28 Yr18_ICARDA
Trait Study	Stripe rust, Singh99
Keyword	[ Hide all but 1 of 39 ] adult adult plant resistance aegilops aegilops tauschii alleles bread wheat chromosome common wheat disease environment field gene inbred lines infection inoculation leaf rust leaf rust resistance linkage lr34 mapping marker mexico population puccinia puccinia recondita puccinia striiformis recombinant inbred lines resistance resistance gene rflp rust sensitivity severity stripe rust tauschii trials triticum aestivum turgidum yellow rust

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